EP0655757A2 - Switch assembly including a safety device for preventing the switch from being accidentally actuated, in particular for motor vehicles and the like - Google Patents

Switch assembly including a safety device for preventing the switch from being accidentally actuated, in particular for motor vehicles and the like Download PDF

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Publication number
EP0655757A2
EP0655757A2 EP19940830508 EP94830508A EP0655757A2 EP 0655757 A2 EP0655757 A2 EP 0655757A2 EP 19940830508 EP19940830508 EP 19940830508 EP 94830508 A EP94830508 A EP 94830508A EP 0655757 A2 EP0655757 A2 EP 0655757A2
Authority
EP
Grant status
Application
Patent type
Prior art keywords
button
push
position
switch assembly
lug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19940830508
Other languages
German (de)
French (fr)
Other versions
EP0655757B1 (en )
EP0655757A3 (en )
Inventor
Paolo C/0 Cavis S.R.L. Colombo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CAVIS Srl
Original Assignee
CAVIS Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/02Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/20Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling

Abstract

The present invention relates to a switch assembly including a device for preventing the switch from being accidentally actuated, in particular for motor vehicles and the like, which comprises an actuating push-button (3), which can be displaced from an OFF position to an ON position and vice versa.
The main feature of the invention is that on the push-button (3) there is provided a slider element (10), including a lug (11) which can be removably engaged with a locking element (15) for holding the push-button in an OFF position, the slider element being displaceable, against the biassing of resilient means (20), in order to disengage the lug (11) from the locking element (15) and allow the push-button (3) to pass from the OFF position to the ON position thereof.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates to a switch assembly including a safety device for preventing the switch from being accidentally actuated, in particular for motor vehicles and the like.
  • As is known, it is frequently necessary to provide, in electric systems, a switch which is normally held in an OFF position and can be switched to its ON position exclusively as it is required.
  • This is the case, in particular, of the motor vehicles in which there is usually provided a switch for switching off the electrical connection with the vehicle battery, which switch, particularly for vehicles provided for transporting dangerous goods, represents a very important safety element.
  • A very important feature of such a switch is that it can not be accidentally switched on since, in such a case, it would switch on the battery thereby providing a dangerous condition, in particular as the vehicle is in movement.
  • Prior switches for the above mentioned use, have not been found to be fully satisfactory in operation.
  • SUMMARY OF THE INVENTION
  • Accordingly, the aim of the present invention is to provide a switch assembly, including a safety device adapted to prevent the switch assembly from being accidentally actuated, in particular for motor vehicles and the like, which requires a deliberated operation to be switched to its ON condition.
  • Within the scope of the above mentioned aim, a main object of the present invention is to provide such a switch assembly which, while having remarkably improved operating features, is moreover very simple from a mere construction standpoint and can be made by conventional methods for making switches.
  • Another object of the present invention is to provide such a switch assembly which is very reliable and safe in operation and which, moreover, can be easily made starting from easily commercially available elements and materials and which, moreover, is very competitive from a mere economic standpoint.
  • According to one aspect of the present invention, the above mentioned aim and objects, as well as yet other objects, which will become more apparent hereinafter, are achieved by a switch assembly including a safety device for preventing said switch assembly from being accidentally actuated, in particular for motor vehicles and the like, comprising an operating push-button which can be displaced from an OFF position to an ON position and vice versa, characterized in that said switch assembly further comprises, on said push-button, a slider provided with a lug which can removably engaged with a locking element in order to hold said push-button in an OFF position thereof, said slider being adapted to be driven, against resilient means, in order to disengage said lug from said locking element and allow said push-button to pass from the OFF position thereof to the ON position thereof.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • Further characteristics and advantages of the invention will become more apparent from the following detailed disclosure of a switch assembly including a safety device for preventing the switch from being accidentally actuated, in particular for motor vehicles and the like, which is illustrated, by way of an indicative, but not limitative, example, in the accompanying drawings, where:
    • Figure 1 is a schematic top plan view of a portion of the push-button of the switch assembly, this figure clearly illustrating the slider included in the switch;
    • Figure 2 is a cross sectional view, substantially taken along the line II-II of Figure 1; and
    • Figure 3 is a further cross-sectional view, substantially taken along the line III-III of Figure 1.
    DESCRIPTION OF THE PREFERRED EMBODIMENT
  • With reference to the number references of the above mentioned figures, the switch assembly including a safety device for preventing the switch from being accidentally actuated, in particular for motor vehicles and the like, and which has been generally indicated at the reference number 1, comprises a switch body 2, which can be of any conventional type, thereon there is applied a push-button 3, for example of a swinging type, which is articulated about its pivot-pin 4.
  • The main feature of the invention is that on the push-button 3 thereis located a slider 10 provided with a lug 11 extending inside the push-button through a slot 12.
  • More specifically, the lug 11 is provided with side legs 13 which, as the switch is assembled, resiliently yield to be easily introduced into the slot and then they will spread apart to engage abutments 14 so as to prevent the slider from disengaging.
  • At the inner end portion thereof, the lug 11 can be removably connected with a detent element 15 provided on the body of the switch and adapted to prevent the push-button from being operated, since it can not swing even if subjected to a pressure, because the lug 11 will abut against the detent or locking element 15.
  • Accordingly, the switch assembly will be held in its OFF position, and it can be operated or switched to its ON position exclusively by operating the slider 10 to cause said slider to be displaced, against the biassing of resilient means, such as a spring 20, operating between the lug 11 and the side walls 21 of the push-button 3.
  • Moreover, as shown, the spring 20 is engaged with a centering peg 22, provided on the lug 11.
  • If the slider 10 is driven, against the urging of the spring 20, then the lug 11 will be disengaged from the detent or locking element 15 and, accordingly, the push-button can be operated, by causing it to swing or toggle, as is shown by the dashed line in Figure 3.
  • Under these conditions, the switch assembly will be switched to its ON position and, accordingly, the connection with the electric battery of the motor vehicle will be disengaged or switched-OFF.
  • On the other hand, as the push-button is returned to its OFF position, the spring will cause the slider to be driven again to its starting position, which operation will be aided by the provision of a cut-out 30 on the lug 11 which will allow said lug to be re-located above the locking or detent element 15.
  • From the above disclosure, it should be apparent that the invention fully achieves the intended aim and objects. In particular, the fact is to be pointed out that a switch assembly has been provided which is very simple construction-wise, while being very efficient, since the provision of the slider will prevent the switch assembly from being accidentally switched ON: in fact, in order to switch ON the switch assembly, is necessary to carry out an additional operation of driving the slider against the spring 20.
  • The invention as disclosed is susceptible to several modifications and variations all of which will come within the scope of the inventive idea.
  • Moreover, all of the details can be replaced by other technically equivalent elements.
  • In practicing the invention, the used materials, as well as the contingent size and shapes can be any, depending on requirements.

Claims (5)

  1. A switch assembly including a safety device for preventing said switch assembly from being accidentally actuated, in particular for motor vehicles and the like, comprising an operating push-button which can be displaced from an OFF position to an ON position and vice versa, characterized in that said switch assembly further comprises, on said push-button, a slider provided with a lug which can removably engaged with a locking element in order to hold said push-button in an OFF position thereof, said slider being adapted to be driven, against resilient means, in order to disengage said lug from said locking element and allow said push-button to pass from the OFF position thereof to the ON position thereof.
  2. A switch assembly, according to Claim 1, characterized in that said lug extends inside said push-button through a slot formed through said push-button.
  3. A switch assembly, according to Claims 1 and 2, characterized in that said resilient means operate between said lug and a wall of said push-button.
  4. A switch assembly, according to one or more of the preceding claims, characterized in that said resilient means comprise a spring, engaged on a peg extending from said lug.
  5. A switch assembly, according to one or more of the preceding claims, characterized in that said lug is provided, at a free end portion thereof, with a cut-out or bevel in order to allow said lug to be easily arranged above said locking element as said push-button is driven from the ON to the OFF position thereof.
EP19940830508 1993-11-25 1994-10-28 Switch assembly including a safety device for preventing the switch from being accidentally actuated, in particular for motor vehicles and the like Expired - Lifetime EP0655757B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITMI930924U 1993-11-25
IT230526Y1 IT230526Y1 (en) 1993-11-25 1993-11-25 Switch provided with a safety device against accidental insertion, for motor vehicles and the like.

Publications (3)

Publication Number Publication Date
EP0655757A2 true true EP0655757A2 (en) 1995-05-31
EP0655757A3 true EP0655757A3 (en) 1997-06-11
EP0655757B1 EP0655757B1 (en) 2001-04-25

Family

ID=11366070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940830508 Expired - Lifetime EP0655757B1 (en) 1993-11-25 1994-10-28 Switch assembly including a safety device for preventing the switch from being accidentally actuated, in particular for motor vehicles and the like

Country Status (2)

Country Link
EP (1) EP0655757B1 (en)
DE (2) DE69427147T2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1160812A2 (en) * 2000-06-02 2001-12-05 REITTER & SCHEFENACKER GmbH & Co. KG Emergency switch for vehicles, in particular for motor vehicles
NL1013767C2 (en) * 1999-01-06 2002-12-03 Zelmer
DE102011084464A1 (en) * 2011-10-13 2013-04-18 Dewert Antriebs- Und Systemtechnik Gmbh Mechanically lockable switch
WO2015042898A1 (en) * 2013-09-29 2015-04-02 Covidien Lp Safety mechanism for medical treatment device and associated methods

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100569357B1 (en) * 2003-10-21 2006-04-07 현대자동차주식회사 Safety lock structure of instrument switch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1947014A1 (en) * 1969-09-17 1971-03-25 Marquardt J & J Betaetigungseinrichtung, especially for switch
US4504707A (en) * 1982-03-15 1985-03-12 Kyushu Hitachi Maxell, Ltd. Push-button switch locking device for use in electric appliance
DE4229756A1 (en) * 1992-09-05 1994-03-10 Abb Patent Gmbh Manual electric switch unit used in automobile - uses sliding or pivoted lever blocking operation of switch contacts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1947014A1 (en) * 1969-09-17 1971-03-25 Marquardt J & J Betaetigungseinrichtung, especially for switch
US4504707A (en) * 1982-03-15 1985-03-12 Kyushu Hitachi Maxell, Ltd. Push-button switch locking device for use in electric appliance
DE4229756A1 (en) * 1992-09-05 1994-03-10 Abb Patent Gmbh Manual electric switch unit used in automobile - uses sliding or pivoted lever blocking operation of switch contacts

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1013767C2 (en) * 1999-01-06 2002-12-03 Zelmer
EP1160812A2 (en) * 2000-06-02 2001-12-05 REITTER & SCHEFENACKER GmbH & Co. KG Emergency switch for vehicles, in particular for motor vehicles
EP1160812A3 (en) * 2000-06-02 2004-03-03 REITTER & SCHEFENACKER GmbH & Co. KG Emergency switch for vehicles, in particular for motor vehicles
DE102011084464A1 (en) * 2011-10-13 2013-04-18 Dewert Antriebs- Und Systemtechnik Gmbh Mechanically lockable switch
DE102011084464B4 (en) * 2011-10-13 2013-09-05 Dewert Antriebs- Und Systemtechnik Gmbh Mechanically lockable cable remote control
US9653227B2 (en) 2011-10-13 2017-05-16 Dewertokin Gmbh Mechanically lockable hand switch
WO2015042898A1 (en) * 2013-09-29 2015-04-02 Covidien Lp Safety mechanism for medical treatment device and associated methods
US9685281B2 (en) 2013-09-29 2017-06-20 Covidien Lp Safety mechanism for medical treatment device and associated methods

Also Published As

Publication number Publication date Type
DE69427147T2 (en) 2001-09-06 grant
EP0655757B1 (en) 2001-04-25 grant
DE69427147D1 (en) 2001-05-31 grant
EP0655757A3 (en) 1997-06-11 application

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